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Pediatric Appendicitis Score (PAS)
Clinical score for suspected acute appendicitis in children aged 4–15 years. Score 0–10 stratifies risk and guides imaging vs. surgical review.
Σ points from 8 criteria (max 10). RLQ pain on cough/hop/percussion and RLQ tenderness weighted ×2.
Symptoms
Signs
Labs
Total score
0/ 10
Interpretation
Low risk
< 4 Low risk
4–6 Indeterminate — abdominal US / further observation
≥ 7 High risk
PAS is validated specifically for ages 4–15 years. A low score does not completely rule out appendicitis — direct clinical assessment is still required.
Reference: Samuel M. Pediatric appendicitis score. J Pediatr Surg. 2002;37:877–881.